The Alliant Power AP0063 is a new head install kit without studs for 2004–2010 GM Duramax applications. Alliant’s Engine Cylinder Head Gasket Kit supports cylinder head service by providing sealing components for the upper engine assembly.

Features & Benefits

• New Alliant Power Head Install Kit Without Studs (Alliant P/N AP0063)
• Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
• Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

• Chevrolet Silverado 2500 HD (2004–2010)
• Chevrolet Silverado 3500 (2004–2006)
• GMC Sierra 3500 (2004–2006)
• GMC Sierra 2500 HD (2004–2010)
• Chevrolet Silverado 3500 Classic / Silverado 2500 HD Classic (2007)
• Chevrolet Silverado 3500 HD (2007–2010)
• GMC Sierra 3500 Classic / Sierra 2500 HD Classic (2007)
• GMC Sierra 3500 HD (2007–2010)
• Alliant Power lists additional vehicle applications for this part number

Always verify fitment against your VIN, engine, and OE part number before ordering.

Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).